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What causes brake lines to break?

I took my vehicle to a mechanic because my brakes weren’t working as well as they used to. The mechanic said my brake lines were almost broken and needed to be replaced. What causes brake lines to break?

avatar
Bonnie Stinson · Updated on
Reviewed by Shannon Martin, Licensed Insurance Agent.
Brake lines are typically made of steel, which can withstand the pressure necessary to stop your car, but unfortunately, it’s also prone to environmental wear and tear. Brakes lines break for one of two reasons:
  • Moisture getting to the steel and corroding it
  • Road salt causing additional corrosion
Once moisture gets into your braking system from corroded or damaged brake lines, your brakes won’t work as well, or even fail. Having your brake lines routinely checked can help you catch minor problems before they become big ones.
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